231232333222220 has 96 divisors (see below), whose sum is σ = 552891281737536. Its totient is φ = 80485838950400.

The previous prime is 231232333222181. The next prime is 231232333222223. The reversal of 231232333222220 is 22222333232132.

It is not an unprimeable number, because it can be changed into a prime (231232333222223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241366409 + ... + 242322528.

It is an arithmetic number, because the mean of its divisors is an integer number (5759284184766).

Almost surely, 2^{231232333222220} is an apocalyptic number.

231232333222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231232333222220 is an abundant number, since it is smaller than the sum of its proper divisors (321658948515316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231232333222220 is a wasteful number, since it uses less digits than its factorization.

231232333222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483689051 (or 483689049 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 231232333222220 its reverse (22222333232132), we get a palindrome (253454666454352).

The spelling of 231232333222220 in words is "two hundred thirty-one trillion, two hundred thirty-two billion, three hundred thirty-three million, two hundred twenty-two thousand, two hundred twenty".